Here are the filled blanks for the sentences provided:

6. We must out what we **are to do next.
. A good dictionary tells you how you **should** pronounce the words.
. We **are** not sure who **will** meet at the entrance.
9. I can't remember when I **have** to turn off the oven.
10. Do you know what you **should** look for?
11. Sam can't decide whether she **should** go or stay home.
12. Please tell me how I **can** get to the bus station.
13. Ha told us where we **could** find it.